Home / 209,137.91-288,609.75-113,644.62

Finding the Fourth Proportional to 209,137.91, 288,609.75 and 113,644.62

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Solution

The fourth proportional to 209,137.91, 288,609.75 and 113,644.62 is: 156,829.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,137.91 : 288,609.75 = 113,644.62 : x
  2. Step 2: Convert to fraction form
    209,137.91/288,609.75 = 113,644.62/x
  3. Step 3: Cross multiply
    209,137.91x = 288,609.75 × 113,644.62
  4. Step 4: Simplify right side
    209,137.91x = 32,798,945,367.05
  5. Step 5: Solve for x
    x = 32,798,945,367.05/209,137.91
  6. Step 6: Final answer
    x = 156,829.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.